Telecommunications system, base station thereof and telecommunications method

[0023]FIG. 1 illustrates a CDMA mobile radiotelephone system 1 to which the present invention has been applied. The mobile radiotelephone system 1 includes a mobile services switching center (MSC) 2, a radio network controller (RNC) 3 and a plurality of base stations 4A to 4C. The mobile services switching center 2, which is connected to the radio network controller 3 via a prescribed transmission line, performs call control and registration management, etc., of mobile stations 5A to 5C via the radio network controller 3, and exercises overall control of the system. Further, the mobile services switching center 2 is connected to a public switched telephone network (PSTN) 6 via a prescribed transmission line to relay calls between telephones connected to the PSTN 6 and desired ones of the mobile stations 5A to 5C.

[0024]The radio network controller 3, which is a device for controlling a radio network, connects and disconnects the base stations 4A to 4C and mobile stations 5A to 5C, hands